Circuit for generating a temperature-compensated voltage reference, in particular for applications with supply voltages lower than 1V
    1.
    发明授权
    Circuit for generating a temperature-compensated voltage reference, in particular for applications with supply voltages lower than 1V 有权
    用于产生温度补偿电压基准的电路,特别是用于电源电压低于1V的应用

    公开(公告)号:US08120415B2

    公开(公告)日:2012-02-21

    申请号:US12464481

    申请日:2009-05-12

    IPC分类号: G05F1/10 G05F3/02

    CPC分类号: G05F3/30

    摘要: An embodiment of a circuit is described for the generation of a temperature-compensated voltage reference of the type comprising at least one generator circuit of a band-gap voltage, inserted between a first and a second voltage reference and including an operational amplifier, having in turn a first and a second input terminal connected to an input stage connected to these first and second input terminal and comprising at least one pair of a first and a second bipolar transistor for the generation of a first voltage component proportional to the temperature. The circuit also comprises the control block connected to the generator circuit of a band-gap voltage in correspondence with at least one first control node which is supplied with a biasing voltage value comprising at least one voltage component which increases with the temperature for compensating the variations of the base-emitter voltage of the first and second bipolar transistors and ensure the turn-on of a pair of input transistors of the operational amplifier. The circuit has an output terminal suitable for supplying a temperature-compensated voltage value obtained by the sum of the first voltage component proportional to the temperature and of a second component inversely proportional to the temperature.

    摘要翻译: 描述了电路的实施例,用于生成包括插入在第一和第二参考电压之间并包括运算放大器的带隙电压的至少一个发生器电路的类型的温度补偿电压基准,其具有 转动连接到与这些第一和第二输入端连接的输入级的第一和第二输入端,并且包括至少一对第一和第二双极晶体管,用于产生与温度成比例的第一电压分量。 该电路还包括与至少一个第一控制节点相对应的带隙电压连接到发生器电路的控制块,该至少一个第一控制节点被提供有包括至少一个电压分量的偏置电压值,所述至少一个电压分量随着用于补偿变化的温度而增加 的第一和第二双极晶体管的基极 - 发射极电压,并确保运算放大器的一对输入晶体管的导通。 电路具有适于提供通过与温度成比例的第一电压分量和与温度成反比的第二分量的和获得的温度补偿电压值的输出端子。

    SENSE-AMPLIFIER CIRCUIT FOR NON-VOLATILE MEMORIES THAT OPERATES AT LOW SUPPLY VOLTAGES
    4.
    发明申请
    SENSE-AMPLIFIER CIRCUIT FOR NON-VOLATILE MEMORIES THAT OPERATES AT LOW SUPPLY VOLTAGES 有权
    用于低电压下运行的非易失性存储器的感应放大器电路

    公开(公告)号:US20110069554A1

    公开(公告)日:2011-03-24

    申请号:US12883072

    申请日:2010-09-15

    IPC分类号: G11C16/06

    摘要: A sense-amplifier circuit includes: a comparison stage that compares a cell current that flows in a memory cell and through an associated bitline, with a reference current, for supplying an output signal indicating the state of the memory cell; and a precharging stage, which supplies, during a precharging step prior to the comparison step, a precharging current to the bitline so as to charge a capacitance thereof. The comparison stage includes a first comparison transistor and by a second comparison transistor, which are coupled in current-mirror configuration respectively to a first differential output and to a second differential output, through which a biasing current flows. The precharging stage diverts, during the precharging step, the biasing current towards the bitline as precharging current, and allows, during the comparison step, passage of part of the biasing current towards the first differential output, enabling operation of the current mirror.

    摘要翻译: 感测放大器电路包括:比较级,其将存储单元中流动的单元电流和相关联的位线与参考电流进行比较,用于提供指示存储单元的状态的输出信号; 以及预充电阶段,其在比较步骤之前的预充电步骤期间向位线提供预充电电流以对其电容充电。 比较级包括第一比较晶体管和第二比较晶体管,其以电流镜配置分别耦合到第一差分输出和偏置电流流过的第二差分输出。 预充电阶段在预充电步骤期间将作为预充电电流的朝向位线的偏置电流转移,并且在比较步骤期间允许偏置电流的一部分朝向第一差分输出通过,使得能够操作电流镜。

    CIRCUIT AND METHOD FOR GENERATING A REFERENCE VOLTAGE IN MEMORY DEVICES HAVING A NON-VOLATILE CELL MATRIX
    5.
    发明申请
    CIRCUIT AND METHOD FOR GENERATING A REFERENCE VOLTAGE IN MEMORY DEVICES HAVING A NON-VOLATILE CELL MATRIX 有权
    在具有非易失性单元矩阵的存储器件中产生参考电压的电路和方法

    公开(公告)号:US20080130361A1

    公开(公告)日:2008-06-05

    申请号:US11941688

    申请日:2007-11-16

    IPC分类号: G11C16/06 G11C7/00

    CPC分类号: G11C16/30

    摘要: A generator circuit generates a reference voltage on an output terminal connected to a matrix of non-volatile memory cells and includes a comparator positioned between a common node and the output terminal. The comparator has first and second input terminals and an output terminal suitable for supplying a compared voltage given by comparing first and second voltage values present on the first and second input terminals. The circuit includes a reference cell inserted between the common node and a first voltage reference. Advantageously, the reference cell comprises a floating gate with a contact terminal coupled to a biasing block, having an input terminal connected to the output terminal of the generator circuit and being suitable for periodically biasing the floating gate contact terminal at a biasing voltage of a second voltage reference.

    摘要翻译: 发电机电路在连接到非易失性存储器单元矩阵的输出端上产生参考电压,并且包括位于公共节点和输出端之间的比较器。 比较器具有第一和第二输入端子和适于提供通过比较第一和第二输入端子上存在的第一和第二电压值给出的比较电压的输出端子。 电路包括插入公共节点和第一电压基准之间的参考单元。 有利地,参考单元包括具有耦合到偏置块的接触端子的浮动栅极,其具有连接到发生器电路的输出端子的输入端子,并且适于在第二个偏置电压周期性地偏置浮置栅极接触端子 电压参考。

    Biasing circuit for EEPROM memories with shared latches
    6.
    发明申请
    Biasing circuit for EEPROM memories with shared latches 有权
    具有共享锁存器的EEPROM存储器的偏置电路

    公开(公告)号:US20080101125A1

    公开(公告)日:2008-05-01

    申请号:US11977876

    申请日:2007-10-26

    IPC分类号: G11C16/04

    CPC分类号: G11C16/12

    摘要: An EEPROM memory having a matrix of individually selectable memory cells, the matrix having a plurality of columns, a plurality of data lines each coupled with the cells of a corresponding column, the data lines being grouped in a plurality of packets, a plurality of biasing elements for providing a biasing signal to the data lines, and means for selecting the biasing elements for a selected one of the packets, wherein each biasing element is associated with corresponding data lines of a plurality of packets, the biasing element comprising switching means for selectively applying the biasing signal to a selected one of the associated data lines.

    摘要翻译: 一种EEPROM存储器,具有单独可选择的存储单元矩阵,该矩阵具有多个列,多个数据线,每条数据线与相应列的单元相耦合,数据线被分组成多个分组,多个偏置 用于向数据线提供偏置信号的元件以及用于为所选分组中的所选择的一个分组选择偏置元件的装置,其中每个偏置元件与多个分组的相应数据线相关联,所述偏置元件包括用于选择性地 将偏置信号应用到所选择的一个相关联的数据线。

    DC-DC down-converter with time constant comparison regulation system
    7.
    发明授权
    DC-DC down-converter with time constant comparison regulation system 有权
    DC-DC下变频器,具有时间常数比较调节系统

    公开(公告)号:US08994355B2

    公开(公告)日:2015-03-31

    申请号:US13401078

    申请日:2012-02-21

    IPC分类号: G05F1/575 H02M3/07

    CPC分类号: H02M3/073

    摘要: A voltage converter device includes a voltage regulator having a supply terminal for receiving a supply voltage and an output terminal for providing a regulated voltage. A voltage multiplier is for receiving the regulated voltage and providing a boosted voltage higher in absolute value than the regulated voltage. The voltage multiplier includes circuitry for providing a clock signal that switches periodically between the regulated voltage and a reference voltage, and a sequence of capacitive stages that alternately accumulate and transfer electric charge according to the clock signal for generating the boosted voltage from the regulated voltage. The voltage regulator includes a power transistor and a regulation transistor each having a first conduction terminal, a second conduction terminal and a control terminal.

    摘要翻译: 电压转换器装置包括具有用于接收电源电压的电源端子和用于提供调节电压的输出端子的电压调节器。 电压倍增器用于接收调节电压并提供绝对值高于调节电压的升压电压。 电压倍增器包括用于提供在调节电压和参考电压之间周期性切换的时钟信号的电路,以及根据时钟信号交替地累积和传送电荷的电容级序列,用于从调节电压产生升压电压。 电压调节器包括功率晶体管和调节晶体管,每个具有第一导电端子,第二导电端子和控制端子。

    Circuit and method for generating a reference voltage in memory devices having a non-volatile cell matrix
    8.
    发明授权
    Circuit and method for generating a reference voltage in memory devices having a non-volatile cell matrix 有权
    用于在具有非易失性单元矩阵的存储器件中产生参考电压的电路和方法

    公开(公告)号:US07633805B2

    公开(公告)日:2009-12-15

    申请号:US11941688

    申请日:2007-11-16

    IPC分类号: G11C11/34

    CPC分类号: G11C16/30

    摘要: A generator circuit generates a reference voltage on an output terminal connected to a matrix of non-volatile memory cells and includes a comparator positioned between a common node and the output terminal. The comparator has first and second input terminals and an output terminal suitable for supplying a compared voltage given by comparing first and second voltage values present on the first and second input terminals. The circuit includes a reference cell inserted between the common node and a first voltage reference. Advantageously, the reference cell comprises a floating gate with a contact terminal coupled to a biasing block, having an input terminal connected to the output terminal of the generator circuit and being suitable for periodically biasing the floating gate contact terminal at a biasing voltage of a second voltage reference.

    摘要翻译: 发电机电路在连接到非易失性存储器单元矩阵的输出端上产生参考电压,并且包括位于公共节点和输出端之间的比较器。 比较器具有第一和第二输入端子和适于提供通过比较第一和第二输入端子上存在的第一和第二电压值给出的比较电压的输出端子。 电路包括插入公共节点和第一电压基准之间的参考单元。 有利地,参考单元包括具有耦合到偏置块的接触端子的浮动栅极,其具有连接到发生器电路的输出端子的输入端子,并且适于在第二个偏置电压周期性地偏置浮置栅极接触端子 电压参考。

    CIRCUIT FOR GENERATING A TEMPERATURE-COMPENSATED VOLTAGE REFERENCE, IN PARTICULAR FOR APPLICATIONS WITH SUPPLY VOLTAGES LOWER THAN 1V
    9.
    发明申请
    CIRCUIT FOR GENERATING A TEMPERATURE-COMPENSATED VOLTAGE REFERENCE, IN PARTICULAR FOR APPLICATIONS WITH SUPPLY VOLTAGES LOWER THAN 1V 有权
    用于产生温度补偿电压参考的电路,特别是用于电压低于1V的应用

    公开(公告)号:US20090284304A1

    公开(公告)日:2009-11-19

    申请号:US12464481

    申请日:2009-05-12

    IPC分类号: H01L23/34 G05F1/10

    CPC分类号: G05F3/30

    摘要: An embodiment of a circuit is described for the generation of a temperature-compensated voltage reference of the type comprising at least one generator circuit of a band-gap voltage, inserted between a first and a second voltage reference and including an operational amplifier, having in turn a first and a second input terminal connected to an input stage connected to these first and second input terminal and comprising at least one pair of a first and a second bipolar transistor for the generation of a first voltage component proportional to the temperature. The circuit also comprises the control block connected to the generator circuit of a band-gap voltage in correspondence with at least one first control node which is supplied with a biasing voltage value comprising at least one voltage component which increases with the temperature for compensating the variations of the base-emitter voltage of the first and second bipolar transistors and ensure the turn-on of a pair of input transistors of the operational amplifier. The circuit has an output terminal suitable for supplying a temperature-compensated voltage value obtained by the sum of the first voltage component proportional to the temperature and of a second component inversely proportional to the temperature.

    摘要翻译: 描述了电路的实施例,用于生成包括插入在第一和第二参考电压之间并包括运算放大器的带隙电压的至少一个发生器电路的类型的温度补偿电压基准,其具有 转动连接到与这些第一和第二输入端连接的输入级的第一和第二输入端,并且包括至少一对第一和第二双极晶体管,用于产生与温度成比例的第一电压分量。 该电路还包括与至少一个第一控制节点相对应的带隙电压连接到发生器电路的控制块,该至少一个第一控制节点被提供有包括至少一个电压分量的偏置电压值,所述至少一个电压分量随着用于补偿变化的温度而增加 的第一和第二双极晶体管的基极 - 发射极电压,并确保运算放大器的一对输入晶体管的导通。 电路具有适于提供通过与温度成比例的第一电压分量和与温度成反比的第二分量的和获得的温度补偿电压值的输出端子。

    METHOD FOR GENERATING A REFERENCE CURRENT AND A RELATED FEEDBACK GENERATOR
    10.
    发明申请
    METHOD FOR GENERATING A REFERENCE CURRENT AND A RELATED FEEDBACK GENERATOR 审中-公开
    用于产生参考电流的方法和相关的反馈发生器

    公开(公告)号:US20080001592A1

    公开(公告)日:2008-01-03

    申请号:US11763679

    申请日:2007-06-15

    IPC分类号: G05F3/20

    CPC分类号: G05F1/46

    摘要: A feedback generator of a reference current may include a differential amplifier having a first input for a reference voltage, and a second input for a feedback voltage and generating an output voltage. The feedback generator may also include a first conduction path including a feedback resistor with the feedback voltage applied thereon, and a first transistor controlled by the output voltage and forcing through the feedback resistor the reference current. The feedback generator may also include a second conduction path coupled to the differential amplifier and biasing the differential amplifier based upon the reference current.

    摘要翻译: 参考电流的反馈发生器可以包括具有用于参考电压的第一输入和用于反馈电压的第二输入并产生输出电压的差分放大器。 反馈发生器还可以包括第一导电路径,其包括其上施加有反馈电压的反馈电阻器,以及由输出电压控制并通过反馈电阻器施加参考电流的第一晶体管。 反馈发生器还可以包括耦合到差分放大器的第二导电路径,并且基于参考电流偏置差分放大器。